function refreshDate()
{
    var request = getXMLHttpRequest();
    
    if (null != request)
    {
        request.onreadystatechange = function()
        {
            if (request.readyState == 4 && request.status == 200)
            {
                document.getElementById('currentDate').innerHTML = request.responseText;;
            }
        };
        
        request.open('GET', 'get/getCurrentDate.php', true);
        request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
        request.send();
    }
}

function getXMLHttpRequest()
{
    return window.XMLHttpRequest ? new XMLHttpRequest() : (window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : null);
}